Precise measurement of differential cross sections of the reaction in momentum range 470-650 MeV/

三輪 浩司*; 藤田 真奈美; 長谷川 勝一   ; 細見 健二  ; 市川 裕大*   ; 今井 憲一*; 七村 拓野; 佐甲 博之   ; 佐藤 進  ; 田村 裕和; 谷田 聖   ; 山本 剛史  ; 他59名*

Miwa, Koji*; Fujita, Manami; Hasegawa, Shoichi; Hosomi, Kenji; Ichikawa, Yudai*; Imai, Kenichi*; Nanamura, Takuya; Sako, Hiroyuki; Sato, Susumu; Tamura, Hirokazu; Tanida, Kiyoshi; Yamamoto, Takeshi; 59 of others*

The differential cross sections of the reaction were measured accurately for the momentum ranging from 470 to 650 MeV/ at the J-PARC Hadron Experimental Facility. Precise angular information about the reaction was obtained for the first time by detecting approximately 100 reaction events at each angular step of . The obtained differential cross sections show slightly forward-peaking structure in the measured momentum regions. The cross sections integrated for were obtained as mb and mb for (MeV/c) and (MeV/c), respectively. These results show a drastic improvement compared to past measurements of the hyperon-proton scattering experiments. They will play essential roles in updating the theoretical models of the baryon-baryon interactions.